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<br> Dear all,<br><div><div dir="ltr"><br>I am working on the FLASH code implementing the PARAMESH4 data/grid structure.<br>Could you clarify me some questions concerning the GuardCells (GC) filling?<br><br>I explain the problem:<br>In order to work on such a local block (with for example 4 GC) I get the pointer to that block with the subroutine "Grid_getBlkPtr".<br>Then I could assign a new value to some GC variables.<br>Finally I call the subroutine "Grid_fillGuardCells<font style="" class="ecxcontent"><span class="ecxSYNOPSIS"></span></font>".<br><br>My questions are:<br>I) What happens to GC values I had changed?<br>II) Can I only read GC variables (like boundary conditions) or also write permanently a new value?<br><br>In other words:<br>i) Which variable I'm really pointing with "Grid_getBlkPtr"? <br>ii) What I change indeed when I work on the GC of that pointer?<br>iii) Do GC communicate straightforwardly to the adjacent block?<br><br>Thank you to everybody.<br><br>Sincerely,<br> Marco Mazzuoli<br><pre><font style="font-size:10pt" color="#002060" size="2"><br><br>Ing. Marco Mazzuoli</font><font style="font-size:10pt" color="#002060" size="2"><br></font><font style="font-size:10pt" color="#002060" size="2">Dipartimento di Ingegneria</font><font style="font-size:10pt" color="#002060" size="2"><br></font><font style="font-size:10pt" color="#002060" size="2">delle Costruzioni, dell'Ambiente e</font><font style="font-size:10pt" color="#002060" size="2"><br></font><font style="font-size:10pt" color="#002060" size="2">del Territorio (DICAT)</font><font style="font-size:10pt" color="#002060" size="2"><br></font><font style="font-size:10pt" color="#002060" size="2">via Montallegro 1</font><font style="font-size:10pt" color="#002060" size="2"><br></font><font style="font-size:10pt" color="#002060" size="2">16145 GENOVA-ITALY</font><font style="font-size:10pt" color="#002060" size="2"><br></font><font style="font-size:10pt" color="#002060" size="2">tel. +39 010 353 2497</font><font style="font-size:10pt" color="#002060" size="2"><br>cell. +39 338 7142904<br></font><font style="font-size:10pt" color="#002060" size="2">e-mail marco.mazzuoli@unige.it</font><font style="font-size:10pt" color="#002060" size="2"><br></font><font style="font-size:10pt" color="#002060" size="2"> marco.mazzuoli84@gmail.com<br></font><font style="font-size:10pt" size="2"><img alt=""></font><br><br><br><br></pre> </div></div> </div></body>
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